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Jurnal Penelitian Pertanian Terapan
Published by Politeknik Negeri Lampung
ISSN : 14105020     EISSN : 24071781     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Pertanian Terapan is a peer-reviewed journal that publishes scientific articles from agricultural disciplines covering Plantation crops, Food crops and horticulture, food Technology, Agriculture biology and agribusiness. Articles published in the Journal of Applied Agriculture may be research results (original) and scientific review articles (review). Applied Journal of Agriculture is published by Research Unit and Community Service of Lampung State Polytechnic Society 3 edition one year, that is January, May, and September. JPPT was first published in January 2000. JPPT published a print version in 2007, then started the online version or Open Journal System (OJS) in 2014. Early online versions of JPPT or OJS editing have not yet been fully implemented online management and are beginning to make improvements Web Journal view and journal cover and OJS governance management on Volume 2 No. 2 of 2017. JPPT has been indexed on Google Scholar and Garuda IPI by 2015, and by 2017 it has indexed SINTA and registered DOAJ and Crossref in the same year. We accept submissions from all over Indonesia. All submitted articles will not be published elsewhere, original and not considered for other publications.
Arjuna Subject : -
Articles 10 Documents
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Search results for , issue "Vol 18 No 3 (2018)" : 10 Documents clear
Perubahan Karakteristik Fisikokimia Tepung Onggok Selama Proses Fermentasi Semi Padat Menggunakan Saccharomyces cerevisiae Beni Hidayat; M. Muslihudin; Syamsu Akmal
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1500

Abstract

Cassava bagasse is a by-product of tapioca industry whose use as food is relatively limited.The improvement of the cassava bagasse flour characteristics as a food ingredient can bedone through a semi-solid fermentation process. The aim of this study was to examine thechanges in physicochemical characteristics of cassava bagasse flour during the semi-solidfermentation process using Saccharomyces cerevisiae. The semi-solid fermentation processwas carried out for 0 days (control), 1 day, 2 days, 3 days, 4 days, and 5 days. Observationsof physicochemical characteristics include pasting characteristics, microstructure, waterabsorption index, and water solubility index. The results showed that the fermentationprocess had no effect on the gelatinization temperature but affected the viscosity of thecassava bagasse flour; during fermentation, liberation and erosion of the starch granule willbe more intense occur, as well as an increase in water absorption index and water solubilityindex.
Efisiensi Pupuk Urea Dan Lahan Dalam Meningkatkan Hasil Jagung “Double Row” Pada Pola Tanam Tumpang Sari Dengan Kacang Tanah Andrestu Kesuma; Niar Nurmauli; Paul B. Timotiwu; Herawati Hamim
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1501

Abstract

Mixed cropping of corn and peanut in “double row” is expected increase efficiency of ureafertilizing and efficiency of land utilization. This research aimed to evaluate the efficiency ofthe urea fertilizing on corn production and to evaluate the efficiency of land utilization in“double row” mixed with peanut. The research conducted in Field of Laboratory LapangTerpadu and Laboratory Ilmu Tanam Faculty of Agriculture University of Lampung fromJuly to October 2014. The experiment used Complete block design with nine treatments andthree replications. The results showed that intercropping of corn “double row” and peanutsdid not affect the efficiency of urea. However, the cropping system increased land utilization.The value of land use efficiency based on yield per hectare has the highest yield at a dose of300 kg urea/ ha that is equal to 1,76. While giving urea fertilizer at dose 0, 50, 100, 150,200, and 250 kg/ ha shows the efficiency of land use amounted to 1,18; 1,20; 1,31; 1,53;1,66; and 1,44.
Efektivitas Suhu dan Lama Pasteurisasi Pada Mutu Pasta Bawang merah (Alllium Cepa Var. Aggregatum) Kemasan Standing Pouch Lorine Tantalu; Rozana Rozana; Isrofatin Isrofatin
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1502

Abstract

Shallotpaste is an alternative product which can be applied as a spice, one of which is onionpaste. This study aims to determine the temperature and duration of shallot pastepasteurization before being processed into onion paste in standing pouch package.Randomized block design (RBD) 2x3 used as design experiments with pasteurizationtemperature treatment as a T factor, consisting of 2 levels, namely low-temperature longtime (LTLT), called T1, that is red onion paste heated at 65oC for 30 minutes, and high-temperature short time (HTST), called T2, that is red onion paste heated at 75oC for 15 seconds. While the S factor is the storage time consists of 5 levels, namely 4, 8 and 12 days.Storage is carried out at room temperature (27.5oC) with 3 replications. The quality observed was physical appearance, reinforced by the test parameters used including TPCand total acid. The results showed that there were changes in color and aroma that occurredafter 12 days storage into brownish yellow due to enzymatic performance. 60oC pasteurization temperature in 30 minutes is recommended for processing onion paste seenfrom the TPC value below the maximum threshold of SNI with a maximum mean value of9.103 CFU /g.
Kinerja Usahatani Kopi di Hulu DAS Sekampung, Tanggamus, Lampung Fitriani Fitriani; Bustanul Arifin; Wan Abbas Zakaria; R. Hanung Ismono
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1503

Abstract

Most of the coffee production areas in Lampung are in the vicinity of production forests andprotected forests, also a catchment area for watersheds in Lampung, namely Sekampung andWay Seputih watersheds. Continuity of sustainable coffee production lines is an importantdemand that needs to be done. The application of coffee production systems with shade(agroforestry) in the catchment area is very important in ensuring environmentalsustainability. This study aims to analyze the income performance of agroforestry coffeebased on the land status in Hulu Das Sekampung. The research uses survey methods. Fielddata exploration conducted in April-November 2016 is located in Datar Lebuay and SinarJawa Villages. Air Naningan, Tanggamus, Lampung. The descriptive statistical analysismethod is used to explain the performance of agroforestry coffee production at the researchlocation. Based on the results and discussion it was concluded that farmers with landownership status had the highest level of coffee farming income compared to the land statusof HKm and non-HKm. Agroforestry coffee farmers obtain sources of income from coffeeproduction, MPTS production, and other crop production (multiple cropping). The averagecontribution of coffee farming income is 22% of the total farm income. Coffee contributes22% to the total income of farmer households. Farmer's household income with the status ofland ownership is the highest compared to the land status of HKm and Non-HKm. Thediversity of income sources of upstream farmers in the watershed. The villages that comefrom various vegetation plants are important in maintaining land cover as a catchment area.The practice of agroforestry coffee is an adaptation of sustainable production in the upperwatershed Sekampung. The pattern of agroforestry coffee production in the area aroundprotected and watershed forests needs to be continuously developed.
Uji Multilokasi Sepuluh Galur Padi Untuk Menghasilkan Varietas Unggul Baru Jaenudin Kartahadimaja; Eka Erlinda Syuriani
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1504

Abstract

Reduced productive rice fields to non-paddy fields, most possible extension of the nationalrice cultivation area to the suboptimal lands reaching ± 91.9 million ha. Technologypackages that can be applied include the use of new improved rice varieties through theassembling of varieties that have high yield potential, resistant to suboptimal soil stress. Theobjective of the research is to produce new superior rice varieties that are available invarious environments. The study used a split-plot design, as the main plot is an environmentconsisting of rice paddies and gogo, as a subplot is the genotype of rice. The treatment ineach environment is prepared using the Randomized Complete Block Design (RCBD). Thetreatment consisted of 10 new rice strains and four varieties as a comparison. Variablesobserved (1) plant height; (2) the maximum number of shoots; (3) number of productiveshoots; (4) long panicle; (5) the number of grains per panicle; (6) the amount of graincontent of each panicle; (7) the number of empty grains per panicle; (8) weight of 1000grains of grain; (9) grain yield of each clump; (10) grain yield per hectare. Data wereanalyzed by variance if there was a difference between mean, median treatment, followed byLsd test at 5% level. The adaptability and yield stability of each strain was determined basedon the value of the coefficient of diversity (KK) (Francis and Kenneberg, 1978) in Syukur etal., (2012). The results showed that seven new rice strains had adaptations both planted asupland rice and lowland rice, namely strains B3, B4, F2, F3, H1, H4, and L2.
Pengaruh Penambahan Asam Sitrat Terhadap Proses Non-Enzimatik Browning Jus Buah Pir Yali (Pyrus bretschneideri Rehd.) Victoria Agatha Angela Sirait; Zulkifli Zulkifli; Tundjung Tripeni Handayani; Martha Lulus Lande
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1505

Abstract

The purpose of this study was to find out how effective citric acid is against the nonenzymaticprocess of browning Yali Pear fruit juice (Pyrus bretschneideri Rehd. Theresearch was conducted in a complete randomized design consisting of 5 replications. Thenon-enzymatic browning inhibition process was tested with citric acid treatment as the mainfactor with five concentrations ie 0% w/v, 2,5% w/v, 5% w/v, 7,5% w/v and 10% w/v.Qualitative parameters were dehydrogenase enzyme activity and reducing sugar level.Quantitative parameters were browning index and total soluble carbohydrate content.Levene test, analysis of variance, and Tukey test were performed at 5% significant level. Theresults showed that decrease in dehydrogenase enzyme activity occurs along with increasingthe concentration of citric acid. The level of reducing sugar has increased along with theincrease of citric acid concentration. The 7,5% w/v citric acid concentration effectivelyinhibited non-enzymatic browning of Yali Pear juice with a 21% reduction in the browningindex. Total soluble carbohydrate content increased 7% at 7.5% w/v citric acidconcentration. From the results of the study it was concluded that citric acid at 7,5% w / vconcentration was the inhibitor of non-enzymatic browning and dehydrogenase enzymeactivity, but stimulator of total soluble carbohydrate and reducing sugar level.
Efek Alelopati Ekstrak Air Daun Mangga (Mangifera indica L. Var. Arumanis) Terhadap Pertumbuhan Rumput Teki (Cyperus rotundus L.) Davina Nathania Prasetya; Zulkifli Zulkifli; Tundjung Tripeni Handayani; Martha L. Lande
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1506

Abstract

The purpose of this research is to know whether the aqueous extract of mango leaves(Mangifera indica L.) affect the growth of purple nutsedge (Cyperus rotundus L.). Thisresearch conducted at Botanical Laboratory of Biology Department Faculty of Mathematicsand the Natural Sciences University of Lampung from September to October 2017. Thisexperiments were carried out in a complete randomized design with the main factors beingaqueous extract of mango leaves with 5 level concentration : 0% w / v ( control), 5% w / v,10% w / v, 15% w / v, and 20% w / v and consist of 5 replications. Parameters measuredwere shoot length, fresh weight, dry weight, and relative water content. The Levene testdetermined the homogeneity of variance at 5% significant level. Analysis of variance andTukey HSD testis did at 5% significant level. The results showed that the concentration ofextract was negatively correlated with shoot length where the shoot length was decreasedsignificantly at 20% extract concentration. Total fresh weight was decreased significantly at20% and correlated linearly negative with extract concentration. Total dry weight wasdecreased significantly at 20% extract concentration. There was no significant effect onrelative water content. From this research, it concluded that aqueous extract of mangoleaves at 20% extract concentration was decreased shoot length, fresh weight and dry weightof purple nutsedge.
Karakteristik Iklim Mikro Serta Pertumbuhan Pada Beberapa Sistem Tanam Jagung Dengan Pola Tanam Tumpang Sari Dan Tanam Tunggal Risa Wentasari; Adriyade Reshi Gusta
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1507

Abstract

The purpose of this study is to know the characteristics of microclimate and the growth ofcorn and soybean on single row, doble row, twin row, and twin row seed system inpoliculture and monoculture pattern. The research was arranged in Randomized BlockDesign with two factors (1) planting system consisting of 4 treatments (Sigle Row (SR) (25x75cm) Doble Row (DR) (20x 20x 80cm), Twin Row (TR) (20x10x 80 cm), and Twin Seed (TS)(40 x 75cm (2 seed in 1 planting hole)) and (2) Cropping Pattern (Polikulture (TS) (100 cmof corn line distance)) and monokulture (TT), with 3 replications. Data analysis was doneby F test (1% and 5%) and BNT (5%). Conclusions: Microclimatic characteristics (a) LightInterception (%) at morning of middle plant canopy, midday and afternoon in the middle andlower part of the canopy are not significantly different. There is a significant difference inmorning light interception at the bottom of the plant canopy, the lowest light interception isTTSR treatment. Temperature (oC) there was significant difference of temperature due to treatment. the TTTS treatment had the highest average temperature under the plant canopy(26.30 o C) and the center of the plant canopy (29.40 o C). Relative humidity (%) did not give a significantly different response to the treatment.
Pengaruh Ekstrak Air Rumput Teki (Cyperus rotundus) Terhadap Pertumbuhan dan Kandungan Klorofil Padi Gogo Varietas Inpago 8 Mia A. Agustin; Zulkifli Zulkifli; Tundjung T. Handayani; Martha L. Lande
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1508

Abstract

The purpose of this research is to know whether the aqueous extract of purple nutsedge(Cyperus rotundus) have an effect on the growth and chlorophyll content of upland riceseedling of Inpago 8 varieties. This research was conducted at Botanical Laboratory ofBiology Department Faculty of Mathematics and the Natural Sciences University ofLampung from September to October 2017. The experiments were carried out in a completerandomized design with the main factors being aqueous extract of purple nutsedge with 5 level : 0% v / v (control), 5% v / v, 10% v / v, 15% v / v, and 20%v/v. Parameters measuredwere shoot length, fresh weight, dry weight, relative water content, and total chlorophyllcontent of rice seedling. Homogeneity of variance was determined by the Levene test at 5%significant level. Analysis of variance and Tukey HSD test is done at 5% significant level.The results showed that the concentration of extract correlated quadratic with shoot lengthwhere the maximum shoot length was 3.9 cm at 10% extract concentration. Fresh weight andrelative water content maximum were 73.21 mg and 76% respectively at concentrations of14% and 10%. The minimum total chlorophyll content was 0.47 mg / g tissue at aconcentration of 11%. There was no significant effect on the dry weight of the seedling.From the results of the study, it was concluded that the extract of purple nutsedge at aconcentration below 14% was a growth stimulator, but it was an inhibitor of chlorophyllbiosynthesis.Keyword: Chlorophyll, Growth, Upland rice variety Inpago 8, Purple nutsedge
Prospek Introduksi Regulon nif dari Bakteri Klebsiella pneumoniae ke Dalam Genom Mitokondria Tanaman Ivan Tjahja Pranata; Adminarwati Hulu; Yoga Aji Handoko
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1509

Abstract

Use of synthetic fertilizers bring environmental pollution, increase weed growth, reduceatmospheric oxygen levels, decrease the fertility of agricultural land, causing eutrophicationand run-offs, also even damaging coral reefs. Recent biotechnology approaches can beutilized to create a new variety of self-fertilization plants that allows it to supply its ownnitrogen making it possible to overcome nitrogen problems and avoid them. This reviewaims to understand how far genetic engineering approach can be used by the introduction ofnif regulon from Klebsiella penumoniae. The nitrogenase-encoding genes which make up thenif regulon proved can be inserted into the mitochondrial genome as like Allen et al. (2017)did in their research. The western blotting result showed that the research succesfullyintegrated the nif regulon to the genome and expressed their proteins.

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